. >> thank you. >>> we just finished up hanukkah. the holiday season is in full swing. even president obama is getting into the spirit. >> coming up next, we will show you the highlights from last night's national christmas tree lighting. [ male announcer ] here's a question for you: if every u.s. home replaced one light bulb with a compact fluorescent bulb, the energy saved could light how many homes? 1 million? 2 million? 3 million? the answer is... 3 million homes. by 2030, investments in energy efficiency could help americans save $300 billion each year. take the energy quiz. energy lives here. raspberries, strawberries, working at your enamel, once it's gone, you can't get it back. i would recommend using pronamel. pronamel will help to reharden the enamel, i use that every day, twice a day, and i know that i am protected. millions have raised their hand for the proven relief of the purple pill. and that relief could be in your hand. for many, nexium helps relieve heartburn symptoms from acid reflux disease. find out how you can save at purplepill.com. there is ris